Electronic counter balance



FIG. 1 is a perspective view of an electronic counter balance showing my new design;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a left side elevation view;

FIG. 5 is a right side elevation view; and,

FIG. 6 is a top plan view thereof;

All indica, except for the trade names, have been eliminated for ease of illustration in FIGS. 1 and 2. 

The ornamental design for the electronic counter balance, as shown and described. 